50.5 MB (4.6 MB compressed)
5129 x 3441 pixels
43.4 x 29.2 cm ⏐ 17.1 x 11.5 in (300dpi)
CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY
Rectal tumour, light micrograph. Section of a villous adenoma, a benign (non-cancerous) growth in the lining of the rectum, the last part of the large intestine before the anus. It may develop into a malignant (cancerous) rectal cancer if left untreated. Villous adenomas are characterised by a cauliflower-like appearance and thick, elongated villi (finger-like projections), seen here. The risk of developing a villous adenoma increases with age.
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